Be careful with Water Wetter.  It will leave a residue after a while.  

Google "Water Wetter Brown" or "Water Wetter Slime"

Cheers, 

Jeff

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of SDF ( aka ;jim lahey' - Scott )
Sent: Friday, July 04, 2014 12:21 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Coolant question

that is adddressed clearly right on the side of a bottle of Water Wetter..
they site a dino test ,
using plain water,
plain water with water wetter,
50/50 a-frz mix,
and that mix with water wetter.

water with water wetter cools best..
they also mention that an anti-frz misture of less than 50/50 ( less a-frz ) cools better than 50/50.

it works too.

had this happen ..
85 Adventurewagon , 2.1 waterboxer engine stock 1.9 cooling system ..
but I added the 2.1 type oil cooler..
and water wetter..
went on a 1,500 or so mile trip ..
my temp needle was glued dead in the middle of the temp gauge scale ..
hills or speed didn't make the needle budge.
On 7/3/2014 2:05 PM, Don Hanson wrote:
> Water Wetter does work.  I used it in my racer, also and when the 
> cooling system is maxxed out, it raises the Max a significant amount.
>     Vanagons usually don't have an over heating problem...unless 
> something isn't quite right...In that situation, Water Wetter might be worthwhile,
> but normally they seem to cool just fine without it.   Can't hurt, I
> guess...but at the track you aren't running glycol 
> antifreeze/coolant...usually just water is required...so water wetter 
> has a real purpose...it helps plain water exchange heat better...in an 
> antifreeze mix, probably not so much..
>
>
> On Thu, Jul 3, 2014 at 4:48 PM, Michael Magnani 
> <mfmagnani@sbcglobal.net>
> wrote:
>
>> I followed with interest the illuminating thread regarding vanagon 
>> cooling systems and I'd like to pose one more question. Has anyone 
>> used Redline Water Wetter in their WBX? We use it in the Sprint Car I 
>> crew on, as do all the other racers in the pits. Granted, we're 
>> running a 700 HP, 360 cu in Chevy V8 that runs on alcohol, but the 
>> concept is the same: improving the efficiency of the cooling system. Any thoughts or opinions?
>> Mike M
>>
>> Sent from my iPad